Home / 387,627,215.52-535,008,341.52-222,705,720.48

Finding the Fourth Proportional to 387,627,215.52, 535,008,341.52 and 222,705,720.48

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Solution

The fourth proportional to 387,627,215.52, 535,008,341.52 and 222,705,720.48 is: 307,381,456.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,627,215.52 : 535,008,341.52 = 222,705,720.48 : x
  2. Step 2: Convert to fraction form
    387,627,215.52/535,008,341.52 = 222,705,720.48/x
  3. Step 3: Cross multiply
    387,627,215.52x = 535,008,341.52 × 222,705,720.48
  4. Step 4: Simplify right side
    387,627,215.52x = 119,149,418,161,021,488
  5. Step 5: Solve for x
    x = 119,149,418,161,021,488/387,627,215.52
  6. Step 6: Final answer
    x = 307,381,456.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.